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  Heterotic and bosonic string amplitudes via field theory

Azevedo, T., Chiodarolia, M., Johansson, H., & Schlotterer, O. (2018). Heterotic and bosonic string amplitudes via field theory. Journal of High Energy Physics, 2018(10): 12. doi:10.1007/JHEP10(2018)012.

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1803.05452.pdf (Preprint), 557KB
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 Creators:
Azevedo, Thales, Author
Chiodarolia, Marco1, Author           
Johansson, Henrik, Author
Schlotterer, Oliver2, Author           
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              
2Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th
 Abstract: Previous work has shown that massless tree amplitudes of the type I and IIA/B
superstrings can be dramatically simplified by expressing them as double copies
between field-theory amplitudes and scalar disk/sphere integrals, the latter
containing all the $\alpha'$-corrections. In this work, we pinpoint similar
double-copy constructions for the heterotic and bosonic string theories using
an $\alpha'$-dependent field theory and the same disk/sphere integrals.
Surprisingly, this field theory, built out of dimension-six operators such as
$(D_\mu F^{\mu \nu})^2$, has previously appeared in the double-copy
construction of conformal supergravity. We elaborate on the $\alpha'
\rightarrow \infty$ limit in this picture and derive new amplitude relations
for various gauge-gravity theories from those of the heterotic string.

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 Dates: 2018-03-142018
 Publication Status: Issued
 Pages: 38+5 pages
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Title: Journal of High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2018 (10) Sequence Number: 12 Start / End Page: - Identifier: -